Why people with dark skin is said to contain more melanin?

Which would most likely increase the carrying capacity for humans in a certain region? O A. Crops that grow more reliably O B. Less access to fresh water O C. Colder weather in the winter O D. An increase in birthrate

When blood sugar is low A) the liver creates insulin. B) glycogen is broken down in the pituitary gland. C) the pancreas secretes glucagon to trigger the liver to release stored glucose.

Which of the following is NOT positively influenced by physical activity? A. cardiovascular disease B. obesity C. osteoporosis D. allergies

Why does a deciduous forest have a variety of habitats?

A car accelerates from 30 mph to 40 mph in 1 second. What is the rate of acceleration?

Which cells are more complex? (circle your answer) A. prokaryotic cells B. eukaryotic cells

Breathable air and drinkable water are

What is adenosine triphosphate?

What are the advantages of Using Both Types of Reproduction

Question for 5 pints. do producers give off or take in carbon dioxide? how do you know?